| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 17°F | 39°F | 27°F | 0.5" |
| February | 20°F | 43°F | 31°F | 1.3" |
| March | 32°F | 55°F | 42°F | 1.0" |
| April | 36°F | 61°F | 47°F | 1.8" |
| May | 44°F | 71°F | 56°F | 2.7" |
| June | 53°F | 78°F | 64°F | 5.2" |
| July | 61°F | 96°F | 78°F | 1.0" |
| August | 56°F | 89°F | 71°F | 2.8" |
| September | 48°F | 78°F | 60°F | 3.9" |
| October | 42°F | 66°F | 52°F | 1.8" |
| November | 32°F | 51°F | 41°F | 1.2" |
| December | 22°F | 38°F | 29°F | 0.1" |
| Index | Stockett | Montana | National |
| Air quality index | 21 | 34 | 42 |
| Pollution index | 250,374 | 834,473 | 2,726,193 |
| Measurement | Total |
| Days measured | 363 |
| Days with good air quality | 350 |
| Days with moderate air quality | 12 |
| Days w/ poor A.Q. for sensitive groups | 1 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.000% |
| Benzene | 0.004% |
| Carbon Tetrachloride | 0.000% |
| Lead | 0.000% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Great Falls, MT | 58,717 | 21 | 58.0% |
| Belt, MT | 537 | 21 | 58.0% |
| Malmstrom AFB, MT | 3,902 | 21 | 58.0% |
| Black Eagle, MT | 836 | 21 | 58.0% |
| Sand Coulee, MT | 201 | 21 | 58.0% |
| Stockett, MT | 189 | 21 | 58.0% |
| City | Population | Air Quality Index | National Avg. |
| Prescott, IA | 189 | 39 | 22.0% |
| Huetter, ID | 189 | 43 | 14.0% |
| Nora, IL | 189 | 29 | 42.0% |
| Kingsbury, IN | 189 | 37 | 26.0% |
| Wing, ND | 189 | 36 | 28.0% |
| Stockett, MT | 189 | 21 | 58.0% |
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